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A114274 Numbers k such that k^2 + 11 is prime. 17

%I #19 Mar 16 2017 04:09:59

%S 0,6,24,30,36,54,90,96,114,120,126,144,150,180,186,204,210,234,246,

%T 270,300,324,366,390,444,456,486,504,510,564,636,654,666,684,690,720,

%U 774,780,834,846,864,930,936,954,960,984

%N Numbers k such that k^2 + 11 is prime.

%H G. C. Greubel, <a href="/A114274/b114274.txt">Table of n, a(n) for n = 1..1000</a>

%t lst={};k=11;Do[If[PrimeQ[n^2+k], (*Print[n];*)AppendTo[lst, n]], {n, 6!}];lst (* _Vladimir Joseph Stephan Orlovsky_, Aug 26 2008 *)

%o (PARI) is(n)=isprime(n^2+11) \\ _Charles R Greathouse IV_, Jan 21 2015

%Y Other sequences of the type "Numbers k such that k^2 + i is prime": A005574 (i=1), A067201 (i=2), A049422 (i=3), A007591 (i=4), A078402 (i=5), A114269 (i=6), A114270 (i=7), A114271 (i=8), A114272 (i=9), A114273 (i=10), this sequence (i=11), A114275 (i=12).

%K nonn

%O 1,2

%A _Zak Seidov_, Nov 19 2005

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)